Abnormal spindle-like microcephaly-associated protein homolog (Aspm)

Involved in mitotic spindle regulation and coordination of mitotic processes. The function in regulating microtubule dynamics at spindle poles including spindle orientation, astral microtubule density and poleward microtubule flux appear to depend on its association with the katanin complex formed by KATNA1 and KATNB1.

Enhances the microtubule lattice severing activity of KATNA1 by recruiting the katanin complex to microtubules. Can block microtubule minus-end expansion and reversely this function can be improved by the katanin complex (PubMed:28436967).