Acts as a transcriptional activator. Binds to the GCC-box pathogenesis-related promoter element. Involved in the regulation of gene expression by stress factors and by components of stress signal transduction pathways. Ubiquitously expressed after ethylene treatment. Induced by Pseudomonas syringae tomato (both virulent and avirulent avrRpt2 strains). Not affected by methyl jasmonate (MeJA), ethylene or salicylic acid (SA). Belongs to the AP2/ERF transcription factor family. ERF subfamily.