Predicted to enable WW domain binding activity and protein phosphatase regulator activity. Predicted to be involved in mRNA cis splicing, via spliceosome. Predicted to act upstream of or within RNA splicing. Predicted to be located in cytosol and nuclear speck. Predicted to be part of spliceosomal complex. Orthologous to human WBP11 (WW domain binding protein 11). [provided by Alliance of Genome Resources, Apr 2022]