Enables arylamine N-acetyltransferase activity. Predicted to be located in cytosol. Is expressed in several structures, including adrenal gland; female reproductive system; respiratory system; spleen; and sympathetic ganglion. 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]