The function of LRFN2 (leucine rich repeat and fibronectin type III domain containing 2, Ensembl gene identifier ENSG00000156564) is as follows. Promotes neurite outgrowth in hippocampal neurons. Enhances the cell surface expression of 2 NMDA receptor subunits GRIN1 and GRIN2A. May play a role in redistributing DLG4 to the cell periphery (By similarity). .