May be involved in the regulation of gene expression by stress factors and by components of stress signal transduction pathways (By similarity). Transcriptional activator involved in the activation of a subset of sugar-responsive genes and the control of carbon flow from sucrose import to oil accumulation in developing seeds. Binds to the GCC-box pathogenesis-related promoter element. Promotes sugar uptake and seed oil accumulation by glycolysis. Required for embryo development, seed germination and, indirectly, for seedling establishment. Negative regulator of the ABA-mediated germination inhibition. Down-regulated by KIN10 that controls its protein stability under a phosphorylation-dependent manner. Interacts with KIN10 and KIN11. Mostly expressed in siliques, especially in seeds. Also detected in roots and flowers, and, to a lower extent, in leaves stems and seedlings. Transiantly in leaves by sucrose, but not by abscisic acid (ABA). Ubiquitinated. The phosphorylation at Thr-70 and Ser-166 by KIN10 facilitates its degradation via the proteasomal pathway. Belongs to the AP2/ERF transcription factor family. AP2 subfamily.