Is predicted to encode a protein with the following domains: L27-1; PDZ superfamily; L27_1; PDZ domain; P-loop containing nucleoside triphosphate hydrolase; Guanylate kinase; SH3-like domain superfamily; SH3 domain; Guanylate kinase/L-type calcium channel beta subunit; and L27 domain superfamily. Is an ortholog of C. elegans dlg-1. In C. elegans, dlg-1 is involved in embryo development and zonula adherens assembly.