Proposed core component of the chromatin remodeling INO80 complex which is involved in transcriptional regulation, DNA replication and probably DNA repair. Component of the chromatin remodeling INO80 complex; specifically part of a complex module associated with the helicase ATP-binding and the helicase C-terminal domain of INO80 (By similarity). Interacts with RP9. Expressed strongly in the testis and moderately in the kidney, skeletal muscle, liver and lung. It is uncertain whether Met-1 or Met-18 is the initiator. Truncated N-terminus. Truncated N-terminus.