Predicted to enable cell adhesion molecule binding activity. Acts upstream of or within glomerular basement membrane development; podocyte development; and pronephric duct development. Predicted to be located in membrane. Predicted to be active in cell-cell junction and plasma membrane. Is expressed in brain and pronephric glomerulus. Human ortholog(s) of this gene implicated in nephrotic syndrome type 23. Orthologous to human KIRREL1 (kirre like nephrin family adhesion molecule 1).