Predicted to be involved in several processes, including antimicrobial humoral immune response mediated by antimicrobial peptide; innate immune response in mucosa; and response to bacterium. Predicted to be active in extracellular space. Orthologous to several human genes including DEFA1B (defensin alpha 1B); DEFA3 (defensin alpha 3); and DEFA4 (defensin alpha 4). [provided by Alliance of Genome Resources, Apr 2022]