Is predicted to encode a protein with the following domains: Saposin-like type B, region 2; Saposin B type, region 2; Saposin-like; and Saposin B type domain. Is an ortholog of C. elegans
spp-5. In C. elegans,
spp-5 is involved in defense response to Gram-negative bacterium and defense response to Gram-positive bacterium.