Is predicted to encode a protein with the following domains: Immunoglobulin subtype; Immunoglobulin-like fold; Immunoglobulin domain; Immunoglobulin subtype 2; and Immunoglobulin-like domain superfamily. Is an ortholog of C. elegans lad-2. In C. elegans, lad-2 is involved in anterior/posterior axon guidance; dorsal/ventral axon guidance; and regulation of axon guidance.