Specifically catalyzes the conjugation of synthetic 1-chloro-2,4-ditrobenzene to GSH. Also functions as a glutathione peroxidase, converting linoleate oxidation products into their corresponding hydroxyacids. This enzyme may thus serve to protect the cell from oxygen toxicity as well as from exogenous toxins such as herbicides. glutathione + RX = a halide anion + an S-substituted glutathione + H(+) Expressed in vegetative rosettes. Expressed up until the first flowering buds, after which, levels dramatically decrease. Belongs to the GST superfamily. Phi family. This protein probably does not originate from A.thaliana, rather it resemble fungal GTSs.