The function of Ensembl gene identifier ENSG00000063046 (EIF4B, eukaryotic translation initiation factor 4B) is as follows. Required for the binding of mRNA to ribosomes. Functions in close association with EIF4-F and EIF4-A. Binds near the 5'-terminal cap of mRNA in presence of EIF-4F and ATP. Promotes the ATPase activity and the ATP-dependent RNA unwinding activity of both EIF4-A and EIF4-F.