Dynamin-3 is a protein that in humans is encoded by the DNM3 gene. The protein encoded by this gene is a member of the dynamin family which possess mechanochemical properties involved in actin-membrane processes, predominantly in membrane budding. DNM3 is upregulated in Sézary's syndrome.Microtubule-associated force-producing protein involved in producing microtubule bundles and able to bind and hydrolyze GTP. Most probably involved in vesicular trafficking processes, in particular endocytosis (By similarity).