Was it in novels, or somewhere else? Who is holding the Portfolio of Lies now, then?
The portfolio of lies still belongs to Cyric, but now it's his sole portfolio. His imprisonment is mentioned in "The Grand History of the Realms", though I can't say when exactly other parts of his portfolio were returned to resurrected gods. Or how Myrkul and Kelemvor are supposed to share the same portfolio of the god of death now.
i think kelemvor is the god of "the dead" and myrkul is the god (or demigod or whatever) of "death"