Is predicted to encode a protein with the following domains: Fibronectin type III superfamily; Immunoglobulin I-set domain; Immunoglobulin I-set; Fibronectin type III; Immunoglobulin-like fold; Immunoglobulin subtype 2; Immunoglobulin domain; Immunoglobulin-like domain superfamily; Fibronectin type III domain; and Immunoglobulin subtype. 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.