The function of RGL3 (ral guanine nucleotide dissociation stimulator like 3, Ensembl gene identifier ENSG00000205517) is as follows. Guanine nucleotide exchange factor (GEF) for Ral-A. Potential effector of GTPase HRas and Ras-related protein M-Ras. Negatively regulates Elk-1-dependent gene induction downstream of HRas and MEKK1 (By similarity). .