Probably acts as a transcriptional activator. 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. Interacts with ANL2, HDG2 and HDG10, and possibly with GL2, HDG3, ATML1 and PDF2. Expressed in roots, seedlings, inflorescence, and siliques. Also detected at low levels in leaves. Belongs to the AP2/ERF transcription factor family. AP2 subfamily. Extended C-terminus.