Enables arylamine N-acetyltransferase activity. Involved in several processes, including digestive tract development; response to hypoxia; and response to lipopolysaccharide. Located in cytosol. Biomarker of end stage renal disease. Human ortholog(s) of this gene implicated in several diseases, including autoimmune disease (multiple); carcinoma (multiple); contact dermatitis (multiple); leukemia (multiple); and lung disease (multiple). Orthologous to several human genes including NAT1 (N-acetyltransferase 1). [provided by Alliance of Genome Resources, Apr 2022]