Is predicted to encode a protein with the following domains: Fibronectin type III superfamily; Immunoglobulin I-set domain; Domain of unknown function DB; Immunoglobulin I-set; Fibronectin type III; Immunoglobulin-like fold; Immunoglobulin subtype 2; Immunoglobulin-like domain superfamily; Fibronectin type III domain; DB module; and Immunoglobulin subtype. Is an ortholog of C. elegans
igdb-1 and
igdb-2.