Predicted to enable GTPase activity and microtubule binding activity. Acts upstream of or within several processes, including chordate embryonic development; convergent extension; and somite development. Predicted to be active in several cellular components, including microtubule; plasma membrane; and synapse. Is expressed in several structures, including central nervous system; liver; otic vesicle; paraxial mesoderm; and pericardial region. Human ortholog(s) of this gene implicated in Charcot-Marie-Tooth disease dominant intermediate B; centronuclear myopathy 1; and lethal congenital contracture syndrome. Orthologous to human DNM2 (dynamin 2).