Is predicted to encode a protein with the following domains: EGF-like domain; Immunoglobulin; Immunoglobulin domain; Fibronectin type III superfamily; Immunoglobulin subtype 2; Fibronectin type III domain; Immunoglobulin subtype; Immunoglobulin-like fold; Immunoglobulin-like domain superfamily; von Willebrand factor type A domain; von Willebrand factor A-like domain superfamily; Soluble quinoprotein glucose/sorbosone dehydrogenase; Fibronectin type III; and von Willebrand factor, type A. Is an ortholog of C. elegans dig-1.