Transcription factor. Interacts specifically with the W box (5'-(T)TGAC[CT]-3'), a frequently occurring elicitor-responsive cis-acting element (By similarity). Functions with WRKY33 as positive regulator of salt stress response and abscisic acid (ABA) signaling (PubMed:18839316). Plays a partial role in heat stress tolerance (PubMed:19125253). Functions with WRKY26 and WRKY33 as positive regulator of plant thermotolerance by partially participating in ethylene-response signal transduction pathway (PubMed:21336597). Interacts with MKS1 (PubMed:15990873). Interacts with SIB1 (PubMed:21990940). Interacts with VQ10 and CAMBP25/VQ15 (PubMed:22535423). Highly expressed in roots and at lower levels in leaves, stems and seeds. By salt stress (PubMed:18839316). Induced by heat stress (PubMed:19125253). Phosphorylated by MPK4. No visible phenotype under normal growth conditions. Belongs to the WRKY group I family.