lookking for function module which shows roles asigned to my user (authori)

Hi all,

I have no access to XT SU01 nor SU01D and now I do not know how I can find out, which roles are asigned to my user.

I am sure there must be a function module where I can enter userID and gives back all roles/perfiles asigned to this user.

SOmeone knows this?

or is there another way to find it out?

Thanks in advance

thom