Rho guanine nucleotide exchange factor 5 (ARHGEF5)

Strongly activates RHOA (PubMed:15601624). Additionally strongly activates RHOB, weakly activates RHOC and RHOG and shows no impact on RHOD, RHOV, RHOQ or RAC1 (By similarity).

Involved in regulation of cell shape and actin cytoskeletal organization (PubMed:15601624). Plays a role in actin organization by generating a loss of actin stress fibers and the formation of membrane ruffles and filopodia (PubMed:14662653).