Is predicted to encode a protein with the following domains: Immunoglobulin I-set; Immunoglobulin subtype 2; Fibronectin type III domain; Immunoglobulin subtype; Immunoglobulin-like fold; Fibronectin type III superfamily; Immunoglobulin I-set domain; Immunoglobulin-like domain superfamily; Fibronectin type III; and Neogenin. Is an ortholog of C. elegans unc-40. In C. elegans, unc-40 is involved in several processes, including axon guidance; regulation of locomotion; and sex differentiation.