Transcriptional activator involved in the regulation of plant development and tolerance to abiotic stresses (PubMed:21069430). Involved in salt and osmotic stress response pathways. May be regulated by the stress-related genes RD29A, RD22, DREB1A or P5CS during stress response (PubMed:27137403). Binds to the GCC-box pathogenesis-related promoter element. May be involved in the regulation of gene expression by stress factors and by components of stress signal transduction pathways (By similarity). Expressed cotyledons, ovules and seeds of immature siliques. Induced by jasmonate (JA) and ethylene. Down-regulated by freezing and heat stresses. Belongs to the AP2/ERF transcription factor family. ERF subfamily.