Component of SWI/SNF chromatin remodeling subcomplex GBAF that carries out key enzymatic activities, changing chromatin structure by altering DNA-histone contacts within a nucleosome in an ATP- dependent manner (PubMed:29374058). May play a role in BRD4-mediated gene transcription (PubMed:21555454). {ECO:0000269|PubMed:21555454, ECO:0000269|PubMed:29374058}. This is the function of ENSG00000063169 (BICRA, BRD4 interacting chromatin remodeling complex associated protein).