Homologous to yeast SWI3 & RSC8, components of the SWI/SNF and RSC chromatin remodeling complexes. Identified as a specific subunit of MINU1/2-associated SWI/SNF (MAS) complexes (PMID:36471048).Interacts with BSH, AtSWI3A, SWI3C and FCA. Expressed ubiquitously.