A function execution method operable in a portable terminal, the method comprising: displaying, on a touch screen, an item list which comprises a plurality of divided regions in each of which a corresponding item is formed; recognizing a first user gesture at one of a first position and a second position, the second position being different from the first position in a particular divided region of the plurality of divided regions, in which the first position is located in a first adjacent region of the particular divided region and the second position is located in a second adjacent region of the particular divided region and wherein the first and second adjacent regions are adjacent to an item-marked region of the particular divided region in which the corresponding item is marked; and executing a function corresponding to the position of the recognized first user gesture, wherein a first function, for providing a first service related to the item formed in the particular divided region, is preset corresponding to the first position of the particular divided region and a second function, for providing a second service related to the item formed in the particular divided region, is preset corresponding to the second position of the particular divided region on the touch screen, the second service being different from the first service, and the method being characterized by: in response to recognizing a second user gesture at the item-marked region of the particular divided region, displaying a menu comprising a plurality of menu items corresponding to respective functions for providing respective services related to the item formed in the particular divided region; recognizing a user selection for selecting a menu item among the plurality of menu items included in the menu; and setting a service function corresponding to the selected menu item as a function corresponding to the first or second adjacent regions of the particular divided region. displaying, on a touch screen, an item list which comprises a plurality of divided regions in each of which a corresponding item is formed; recognizing a first user gesture at one of a first position and a second position, the second position being different from the first position in a particular divided region of the plurality of divided regions, in which the first position is located in a first adjacent region of the particular divided region and the second position is located in a second adjacent region of the particular divided region and wherein the first and second adjacent regions are adjacent to an item-marked region of the particular divided region in which the corresponding item is marked; and executing a function corresponding to the position of the recognized first user gesture, wherein a first function, for providing a first service related to the item formed in the particular divided region, is preset corresponding to the first position of the particular divided region and a second function, for providing a second service related to the item formed in the particular divided region, is preset corresponding to the second position of the particular divided region on the touch screen, the second service being different from the first service, and the method being characterized by: in response to recognizing a second user gesture at the item-marked region of the particular divided region, displaying a menu comprising a plurality of menu items corresponding to respective functions for providing respective services related to the item formed in the particular divided region; recognizing a user selection for selecting a menu item among the plurality of menu items included in the menu; and setting a service function corresponding to the selected menu item as a function corresponding to the first or second adjacent regions of the particular divided region. in response to recognizing a second user gesture at the item-marked region of the particular divided region, displaying a menu comprising a plurality of menu items corresponding to respective functions for providing respective services related to the item formed in the particular divided region; recognizing a user selection for selecting a menu item among the plurality of menu items included in the menu; and setting a service function corresponding to the selected menu item as a function corresponding to the first or second adjacent regions of the particular divided region.