Is predicted to encode a protein with the following domains: Immunoglobulin; Immunoglobulin domain; Immunoglobulin I-set; Immunoglobulin subtype 2; Immunoglobulin subtype; Immunoglobulin-like fold; Immunoglobulin-like domain superfamily; Immunoglobulin I-set domain; and von Willebrand factor A-like domain superfamily. Is an ortholog of C. elegans C27B7.7 and him-4.