Scaffold subunit of various histone acetyltransferase (HAT) complexes, such as the MOZ/MORF and HBO1 complexes, which have a histone H3 acetyltransferase activity (PubMed:16387653, PubMed:26620551, PubMed:26677226). Plays a role in DNA replication initiation by directing KAT7/HBO1 specificity towards histone H3 ‘Lys-14’ acetylation (H3K14ac), thereby facilitating the activation of replication origins (PubMed:26620551). Component of the MOZ/MORF complex which has a histone H3 acetyltransferase activity (PubMed:16387653).
