Predicted to enable chromatin binding activity. Predicted to be involved in mitotic spindle assembly and sister chromatid cohesion. Predicted to act upstream of or within stem cell population maintenance. Predicted to be located in mitotic spindle pole and nuclear matrix. Predicted to be part of cohesin complex. Predicted to be active in chromatin and nucleus. Human ortholog(s) of this gene implicated in Mullegama-Klein-Martinez syndrome and holoprosencephaly. Orthologous to human STAG2 (stromal antigen 2). [provided by Alliance of Genome Resources, Apr 2022]