Microtubule-depolymerizing kinesin which plays a role in chromosome congression by reducing the amplitude of preanaphase oscillations and slowing poleward movement during anaphase, thus suppressing chromosome movements. May stabilize the CENPE-BUB1B complex at the kinetochores during early mitosis and maintains CENPE levels at kinetochores during chromosome congression. Interacts with CENPE and ESR1. By estrogen. Glycosylated. Ubiquitinated. Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Kinesin family.