RNA-binding protein involved in pre-mRNA splicing. Required for sperm development. Acts additively with TRA2B to promote exon 7 inclusion of the survival motor neuron SMN. Binds non-specifically to mRNAs.
Contains 1 RRM (RNA recognition motif) domain.
Expressed in all of the transcriptionally active stages of germ cell development from spermatogonia through spermatocytes to round spermatids.