The function of Ensembl gene identifier ENSG00000102302 (FGD1, FYVE, RhoGEF and PH domain containing 1) is as follows. Activates CDC42, a member of the Ras-like family of Rho- and Rac proteins, by exchanging bound GDP for free GTP. Plays a role in regulating the actin cytoskeleton and cell shape. .