ULX is a bit different, when using a new admin tool that completely reconfigures your server's admin functions it's always good to assume the call functions to activate a command will be different as well.
-ULX is based on !commands rather then /commands what your describing is TEAM chat which can be accessed by pressing U as well.
I am not sure what /me is supposed to do, but as far as I know its not a recognized ULX command. Perhaps one of the developers will see this thread and help you better then I can, I just jumped on in hopes that I may be able to help you sooner rather then later.
can you tell me what /me is supposed to do? Then perhaps, I can assist in telling you the ULX version of that command.