Predicted to enable RNA binding activity. Predicted to be involved in mRNA splicing, via spliceosome. Predicted to act upstream of or within RNA splicing and mRNA processing. Predicted to be located in nuclear speck. Predicted to be part of ASAP complex. Predicted to be active in cytoplasm and nucleoplasm. Orthologous to human RNPS1 (RNA binding protein with serine rich domain 1).