Predicted to enable RNA binding activity and proline-rich region binding activity. Predicted to be involved in mRNA cis splicing, via spliceosome. Predicted to act upstream of or within mRNA processing. Part of spliceosomal complex. Is expressed in several structures, including early conceptus and genitourinary system. Orthologous to human WBP4 (WW domain binding protein 4). [provided by Alliance of Genome Resources, Apr 2022]