Enables arylamine N-acetyltransferase activity. Predicted to be located in cytosol. Is expressed in several structures, including adrenal gland; brain; genitourinary system; submandibular gland; and thymus. 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 human NAT1 (N-acetyltransferase 1) and NAT2 (N-acetyltransferase 2). [provided by Alliance of Genome Resources, Apr 2022]