The function of HAUS1 (HAUS augmin like complex subunit 1, Ensembl gene identifier ENSG00000152240) is as follows. Contributes to mitotic spindle assembly, maintenance of centrosome integrity and completion of cytokinesis as part of the HAUS augmin-like complex. {ECO:0000269|PubMed:15082789, ECO:0000269|PubMed:19369198, ECO:0000269|PubMed:19427217}.