Iron-sulfur (Fe-S) cluster binding motor protein that has a role in chromosome segregation during mitosis (By similarity). Translocates PRC1 to the plus ends of interdigitating spindle microtubules during the metaphase to anaphase transition, an essential step for the formation of an organized central spindle midzone and midbody and for successful cytokinesis (By similarity). May play a role in mitotic chromosomal positioning and bipolar spindle stabilization (By similarity). Binds 1 [4Fe-4S] cluster (By similarity). In the presence of oxygen, the [4Fe-4S] cluster may be converted to [2Fe-2S] (By similarity). Specifically expressed in testis. Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Kinesin family. Chromokinesin subfamily.