Predicted to enable protein homodimerization activity. 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 act upstream of or within defense response to bacterium. Predicted to be located in extracellular region. Predicted to be active in extracellular space. Orthologous to several human genes including DEFA3 (defensin alpha 3) and DEFA6 (defensin alpha 6). [provided by Alliance of Genome Resources, Apr 2022]