Dual-function transcription factor with both repression and activation activities. Binds to 5'-CCATATT-3' motif in target gene promoters (e.g. ABR1) (PubMed:26961720). Binds also to G-rich DNA motif 5'-GGGGGCAGTGG-3' (PubMed:22508367). Regulates the expression of genes involved in diverse cellular pathways, including glucose metabolism, photosynthesis, phototropism and stress response (e.g. salt, drought and osmotic stress) (PubMed:22508367, PubMed:26961720). Regulates plant immunity, especially during necrotrophic fungal infection (e.g. B.cinerea) (PubMed:24451981). Binds to ABR1 promoter and promotes its expression, thus negatively regulating the abscisic acid (ABA) signaling pathway. Represses ABA- and salt-responsive genes expression (PubMed:26961720). Interacts with MED18 to suppress disease susceptibility via the repression of genes glutaredoxins GRX480, GRXS13 and thioredoxin TRX-h5. Mostly expressed in flowers, to a lower extent in seedlings, stems and leaves, and, at low levels, in roots and senescent leaves. Rapidly induced following seed germination, especially in tender cotyledons. Induced by abscisic acid (ABA) in an ABI1- and ABI4-dependent manner. Stimulated by stress conditions including high salt, osmotic stress (e.g. mannitol) and dehydration. May be induced by ABI4 but repressed by ABR1. Repressed by darkness but induced by light. Deregulated expression of glutaredoxins GRX480, GRXS13 and thioredoxin TRX-h5 leading to enhanced susceptibility to fungal infection (e.g. B.cinerea) (PubMed:24451981). Increased sensitivity to abscisic acid (ABA), drought, and salt (NaCl) stress. Reduced induction of ABR1, but reduced repression of RD29A, RD29B, and COR15A in response to abiotic stresses (PubMed:26961720).