Component of the CENPA-HI complex, a centromeric complex involved in assembly of kinetochore proteins, mitotic progression and chromosome segregation. Component of the CENPA-HI complex, at least composed of CENPH, CENPI, CENPK, CENPL, CENPM, CENPO and CENPP. Localizes exclusively in the centromeres. Belongs to the CENP-K/MCM22 family.