During mitosis, may be involved in the condensation of spindle midzone microtubules, leading to the formation of midbody. Essential for the formation and integrity of the midbody. Max play a critical role in the progress of mitosis and cytokinesis during cell cycle (By similarity). Interacts with AURKB. At interphase, localizes to centrosomes. At prometaphase and metaphase, associated with spindle microtubules and spindle poles. At anaphase, accumulates in the spindle midzone. At telophase, condensed on central spindles. During cytokinesis, condensed on the midbody where it colocalizes with AURKB (By similarity). Expressed in embryos at all stages examined. In adult tissues, detected in heart and at low levels in kidney and testis. Truncated N-terminus. Truncated N-terminus. Several sequencing errors and erroneous CDS prediction.