This gene encodes a protein containing an RNA-binding
motif in the N-terminus and four SRGY (serine, arginine, glycine,
tyrosine) boxes in the C-terminus. Multiple copies of this gene are
found in the AZFb azoospermia factor region of chromosome Y and the
encoded protein is thought to be involved in spermatogenesis. Most
copies of this locus are pseudogenes, although six highly similar
copies have full-length ORFs and are considered functional. Four
functional copies of this gene are found within inverted repeat
IR2; two functional copies of this gene are found in palindrome P3,
along with two copies of PTPN13-like, Y-linked. [provided by
RefSeq].