Predicted to enable RNA 7-methylguanosine cap binding activity and translation initiation factor activity. Predicted to act upstream of or within translational initiation. Predicted to be located in cytoplasm. Predicted to be part of eukaryotic translation initiation factor 4F complex. Is expressed in oocyte and testis. Orthologous to human EIF4E1B (eukaryotic translation initiation factor 4E family member 1B). [provided by Alliance of Genome Resources, Apr 2022]