ZK1098.1 encodes a protein, with multiple WW/rsp5/WWP domains and FF domains, required for embryonic viability and for normally high rates of postembryonic growth.
Predicted to enable RNA binding activity. Predicted to be involved in mRNA splicing, via spliceosome. Located in nucleus. Expressed in several structures, including body wall musculature; gonad; and nervous system. Is an ortholog of human PRPF40A (pre-mRNA processing factor 40 homolog A).