Transcription activator that binds sequence-specific DNA motifs. Involved in stress response. Plays a positive role in drought and salt stress tolerance through the modulation of abscisic acid-mediated signaling. Induced by drought stress, salt stress and abscisic acid (ABA). The NAC domain includes a DNA binding domain and a dimerization domain. Plants overexpressing NAC022 exhibit enhanced tolerance to drought stress and salt stress.