Microtubule-associated force-producing protein that plays a role in organelle transport. Its motor activity is directed toward the microtubule's plus end. May be involved in cell motility or cell differentiation during prestalk formation. During the developmental stage with highest levels detectable between 12 and 16 h of development. Kif7-null cells have a problem in the localization or differentiation of prestalk cells in a kif7-null/wild type mixed aggregate. Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Kinesin family.