In the kidney glomerulus may play a role in linking podocyte foot processes to the glomerular basement membrane. May be involved in stabilization of F-actin by attenuating its depolymerization. Can recruit TGFB1I1 from focal adhesions to podocyte lamellipodia. Self-associates. Interacts with TGFB1I1. Localizes to the slit diaphragm and foot process of podocytes. Localization to peripheral regions of lamellipodia seems to be dependent on PI3K (By similarity). Expressed in the kidney and testis. Expressed in the kidney exclusively by glomerular podocytes. Extended N-terminus.