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. GTP + H2O = GDP + H(+) + phosphate Microtubule-associated. Isoform-specific localization. Isoform-specific expression in germ-cell-depleted testis (Sertoli cells), brain (peripheral sensory neurons), lung and heart. Up-regulated expression throughout development. Expressed in lung, brain, heart. Expressed in lung, brain, heart, testis. Localized to vesicular-like punctate spots, neither at the plasma membrane nor the Golgi area. Expressed in lung, brain, heart, testis. Expressed in lung, brain, heart. Expressed in lung. Expressed in lung. Expressed in lung, brain, heart, testis. Expressed in lung, brain, heart, testis. Diffuse cytoplasmic distribution and some modest association with the Golgi apparatus. Expressed in lung, brain, heart. Expressed in lung, brain, heart. Expressed in lung. Expressed in lung. Expressed in lung, brain, heart, testis. Belongs to the TRAFAC class dynamin-like GTPase superfamily. Dynamin/Fzo/YdjA family.