fog-1 encodes a cytoplasmic polyadenylation element binding (CPEB) protein; FOG-1 is required for specification of the sperm fate; FOG-1 binds its own 3'-UTR and fog-1 expression is directly regulated by FBF-1 and FBF-2.
Enables mRNA 3'-UTR binding activity. Involved in cell fate specification; germ-line sex determination; and spermatogenesis. Located in cytoplasm and nuclear periphery. Expressed in germ line.