May be involved in herbivory-mediated responses. May play a role in herbivory-associated molecular pattern (HAMP) recognition. May function is jasmonate (JA) signaling in response to HAMP (PubMed:23314818). May play a role in defense response against the pathogens Altenaria brassicicola and Pseudomonas syringae (PubMed:23903439). Interacts with RUB1/NEDD8. Localized in endoplasmic reticulum bodies (ER bodies). Induced by the diamond-back moth Plutella xylostella and the generalist herbivore Spodoptora littoralis (PubMed:23314818). Induced by jasmonate (JA) (PubMed:23314818, PubMed:23903439). Induced by wounding (PubMed:23903439). Down-regulated by salicylic acid (SA) (PubMed:23314818). Down-regulated by ethylene (PubMed:23903439). Neddylated. Ubiquitinated. Semi-dwarf phenotype. Transcriptionally regulated by NAI1, a transcription activator which mediates the formation of endoplasmic reticulum bodies (ER bodies). ER bodies are rod-shaped ER-derived structures produced by plants of the Brassicales order.