May play a role in spermatogenesis or folliculogenesis (By similarity). Binds hyperacetylated chromatin and plays a role in the regulation of transcription, probably by chromatin remodeling. Regulates transcription of the CCND1 gene. Plays a role in nucleosome assembly. Homodimer. Interacts with E2F1 and with histone H4 acetylated at 'Lys-13'. (Microbial infection) Interacts with herpes virus 8 protein LANA1. Detected on chromatin and nucleosomes. One bromodomain is sufficient for a partial interaction with histone H4 acetylated at 'Lys-13'. Truncated N-terminus.