Alt F5 on a Mac does not have any specific function or shortcut associated with it. The "Alt" key on a Mac keyboard is called the "Option" key. The "F5" key is typically used as a function key in combination with other keys for various purposes, such as refreshing a web page or accessing specific features in certain applications.
However, on a Mac, the specific function or action associated with a key combination can vary depending on the software or application you are using. It's essential to check if the Alt F5 combination has any specific function within the application you are currently using.
To provide a more specific answer, please let me know the context or application you are referring to, and I'll be happy to assist you further.