eIF4E1-binding protein that regulates translation and stability of mRNAs in processing bodies (P-bodies) (By similarity). Probably plays a role in P-bodies to coordinate the storage of translationally inactive mRNAs in the cytoplasm and prevent their degradation (By similarity). Acts as a binding platform for multiple RNA-binding proteins. Required for the formation of P-bodies (By similarity). Interacts (via YXXXXLphi motif) with eIF4E1 (PubMed:25702871). Interacts with DDX6/me31B (PubMed:31439631). Mainly localizes to processing bodies (P-bodies) (PubMed:24335285). Present at low level in other parts of the cytoplasm and in the nucleus (PubMed:24335285). Expressed in all larval and adult organs and tissues, with highest levels in the ovary. The YXXXXLphi motif mediates interaction with eIF4E1. Belongs to the 4E-T/EIF4E-T family.