Transcription factor involved in abscisic acid (ABA) signaling pathway (PubMed:20576316, PubMed:19947981, PubMed:21546455, PubMed:22301130, PubMed:26300907, PubMed:27468891). Transcription factor activity is fully activated by ABA (PubMed:19947981, PubMed:26300907, PubMed:27468891). Acts as positive regulator of the expression of abiotic stress-responsive genes through an ABA-dependent signaling pathway (PubMed:20576316). Acts as positive regulator of ABA signaling and drought stress tolerance (PubMed:22301130). Plays an important role in ABA and auxin responses. Involved in ABA signaling and stress responses by directly binding to the ABA-responsive element (ABRE)-containing genes, especially WRKY family genes. Modulates response to auxin. Suppresses auxin signaling by targeting ABRE-containing genes related to auxin metabolism or signaling (PubMed:21546455). Interacts with MODD (PubMed:27468891). Interacts with SAPK2, SAPK6 and SAPK9 (PubMed:22301130). Expressed in roots, shoots, leaves, flag leaves, stems, flowers and panicles (PubMed:20576316). Widely expressed (PubMed:21546455). Induced by abscisic acid (ABA) (PubMed:20576316, PubMed:18315698, PubMed:21546455, PubMed:22301130). Induced by auxin (PubMed:21546455, PubMed:22301130). Induced by gibberellin (PubMed:21546455). Induced by salt and drought stresses (PubMed:20576316, PubMed:21546455, PubMed:22301130). Induced by cold stress (PubMed:20576316). Induced by oxidative stress (PubMed:20576316, PubMed:22301130). Phosphorylated on serine and threonine residues by SAPK2, SAPK6 and SAPK9. Phosphorylation is required for full transactivation activity. No visible phenotype under normal growth conditions, but mutant plants exhibit increased sensitivity to salt and drought stresses (PubMed:20576316). Decreased sensitivity to abscisic acid (ABA) (PubMed:20576316, PubMed:21546455). Plants over-expressing BZIP46 display increased sensitivity to abscisic acid (ABA).