Contributes to mitotic spindle assembly, maintenance of centrosome integrity and completion of cytokinesis as part of the HAUS augmin-like complex. Component of the HAUS augmin-like complex. The complex interacts with the gamma-tubulin ring complex and this interaction is required for spindle assembly (By similarity). Interacts with EML3 (phosphorylated at 'Thr-882') (By similarity). Localizes to interphase centrosomes and to mitotic spindle microtubules. Belongs to the HAUS4 family.