Transcriptional repressor involved in the inhibition of plant growth under abiotic stress conditions. Can repress the expression of various genes, including osmotic stress and abscisic acid-repressive genes and auxin-inducible genes, by binding to their promoter regions in a DNA sequence-specific manner. Acts as a negative regulator of abscisic acid (ABA) signaling during seed germination. Probably involved in jasmonate (JA) early signaling response. May regulate the expression of the JA biosynthesis gene LOX3 and control the expression of TIFY10A/JAZ1, a key repressor in the JA signaling cascade. May act as a positive regulator of leaf senescence. Has been identified as a suppressor of the deficiency of yeast snf4 mutant to grow on non-fermentable carbon source. Expressed in roots, radicles, cotyledons, hypocotyls, leaf veins, stems, sepals, petals, stamens, placenta, funiculi and maturated seeds. By abscisic acid (ABA), ethylene, salt, cold, dehydration and the monovalent and divalent cations Li(+), Na(+), K(+), Cs(+), Ca(2+) and Mg(2+). Delayed senescence and hypersensitivity to ABA during seed germination. Plants overexpressing AZF2 have increased sensitivity to salt stress and barely survive under high salt conditons.