The function of TXNRD2 (thioredoxin reductase 2, ENSG00000184470) is as follows. Involved in the control of reactive oxygen species levels and the regulation of mitochondrial redox homeostasis (PubMed:24601690). Maintains thioredoxin in a reduced state. May play a role in redox- regulated cell signaling. {ECO:0000250|UniProtKB:Q9Z0J5, ECO:0000269|PubMed:24601690}.