Is predicted to encode a protein with the following domains: Immunoglobulin I-set; Immunoglobulin subtype 2; Immunoglobulin-like fold; Immunoglobulin-like domain superfamily; and Immunoglobulin I-set domain. Is an ortholog of C. elegans oig-1. In C. elegans, oig-1 is involved in neuron remodeling.