Q:

Does @see can be use to reference function by name?

I know that it can point to a method, but if I want to reference a function from other file?
E.g:
/**
 * @see fn_name()
 */

is ok?
and can I use this tag inside other function?

A:

As stated in documentation: 

The @see tag can be used to define a reference to other Structural Elements or to an URI.

so yes, you can use @see to make reference to other method.

