Predicted to enable mRNA binding activity and translation initiation factor activity. Acts upstream of or within positive regulation of cellular protein metabolic process; positive regulation of meiosis I; and spermatogenesis. Predicted to be part of eukaryotic translation initiation factor 4F complex. Is expressed in nervous system; neural retina; and submandibular gland primordium. Orthologous to human EIF4G3 (eukaryotic translation initiation factor 4 gamma 3). [provided by Alliance of Genome Resources, Apr 2022]