Functional entity with at least two first and second separation elements (5A, 5B) that are pivotally connected to one another, of which the first separation element is connected at the front in a rotatable manner to a guiding device that comprises a guide carriage that is displaceable along a running rail, which extends with a first rail section parallel to the front of the functional entity and with a second rail section within a door compartment, into which the two separation elements (5A, 5B) are displaceable; wherein the guide carriage comprises a carriage body having a carriage head and a carriage foot which are connected to one another by a carriage beam, wherein the carriage head holds at least one support wheel and at least two guide wheels and that the carriage foot is connected in a non-rotatable manner to a first end piece of a hinge lever, whose second end piece is held rotatably by a hinge shaft at the height of or below the running rail, which hinge shaft is arranged in a guide hinge that is connected to a sidewall of the first separation element; wherein the second separation element is held by a mounting profile which is displaceable in the door compartment along at least one auxiliary rail and/or is held vertically by a scissor assembly, and the running rail is connected by an adapter plate to a cover plate of the functional entity; wherein the two separation elements (5A, 5B) are provided on the sides facing each other with hinges, in particular pot hinges, whose hinge levers are connected to each other by an articulated shaft, and wherein at least one clamp is connected to the articulated shaft in a form-fitting or force-fitting manner and engages in a form-fitting manner in an intermediate bracket which covers the free space between the two separation elements (5A, 5B) and is preferably provided with a holding element. wherein the guide carriage comprises a carriage body having a carriage head and a carriage foot which are connected to one another by a carriage beam, wherein the carriage head holds at least one support wheel and at least two guide wheels and that the carriage foot is connected in a non-rotatable manner to a first end piece of a hinge lever, whose second end piece is held rotatably by a hinge shaft at the height of or below the running rail, which hinge shaft is arranged in a guide hinge that is connected to a sidewall of the first separation element; wherein the second separation element is held by a mounting profile which is displaceable in the door compartment along at least one auxiliary rail and/or is held vertically by a scissor assembly, and the running rail is connected by an adapter plate to a cover plate of the functional entity; wherein the two separation elements (5A, 5B) are provided on the sides facing each other with hinges, in particular pot hinges, whose hinge levers are connected to each other by an articulated shaft, and wherein at least one clamp is connected to the articulated shaft in a form-fitting or force-fitting manner and engages in a form-fitting manner in an intermediate bracket which covers the free space between the two separation elements (5A, 5B) and is preferably provided with a holding element.