This gene is a tumor suppressor and encodes a protein that binds to the eukaryotic translation initiation factor 4A1 and inhibits its function by preventing RNA binding.
Alternative splicing results in multiple transcript variants.
Inhibits translation initiation and cap-dependent translation.
May excert its function by hindering the interaction between EIF4A1 and EIF4G.
Inhibits the helicase activity of EIF4A.
Modulates the activation of JUN kinase.
Down-regulates the expression of MAP4K1, thus inhibiting events important in driving invasion, namely, MAPK85 activation and consequent JUN-dependent transcription.