Predicted to enable pre-mRNA 3'-splice site binding activity. Predicted to be involved in mRNA splicing, via spliceosome. Predicted to be located in cytoplasm and nuclear speck. Predicted to be part of U2AF complex and spliceosomal complex. Orthologous to human U2AF1L4 (U2 small nuclear RNA auxiliary factor 1 like 4). [provided by Alliance of Genome Resources, Apr 2022]