Enables tubulin N-acetyltransferase activity. Acts upstream of or within several processes, including alpha-tubulin acetylation; dentate gyrus development; and positive regulation of NLRP3 inflammasome complex assembly. Located in microtubule bundle. Is expressed in several structures, including adrenal gland; central nervous system; gut; male reproductive gland or organ; and neural retina. Orthologous to human ATAT1 (alpha tubulin acetyltransferase 1). [provided by Alliance of Genome Resources, Apr 2022]