Enables several functions, including DNA binding activity; DNA-binding transcription factor binding activity; and p53 binding activity. Involved in several processes, including cellular response to organic cyclic compound; positive regulation of cell differentiation; and regulation of protein metabolic process. Located in chromatin; cytoplasm; and nucleus. Part of protein-DNA complex. Used to study diabetic retinopathy and membranoproliferative glomerulonephritis. Biomarker of congenital diaphragmatic hernia; heart disease; hepatocellular carcinoma; hypertension; and transient cerebral ischemia. Human ortholog(s) of this gene implicated in Rubinstein-Taybi syndrome; colorectal cancer; and congestive heart failure. Orthologous to human EP300 (E1A binding protein p300). [provided by Alliance of Genome Resources, Apr 2022]