Enables pre-mRNA 3'-splice site binding activity. Predicted to be involved in mRNA splicing, via spliceosome. Predicted to be part of U2AF complex and spliceosomal complex. Is an ortholog of human U2AF1 (U2 small nuclear RNA auxiliary factor 1) and U2AF1L4 (U2 small nuclear RNA auxiliary factor 1 like 4).
Enables pre-mRNA 3'-splice site binding activity. Involved in several processes, including embryonic body morphogenesis; mRNA 3'-splice site recognition; and nematode larval development. Located in nucleoplasm. Is an ortholog of human U2AF2 (U2 small nuclear RNA auxiliary factor 2).