label: Atg12 conjugating enzyme activity
label_lc: atg12 conjugating enzyme activity
description: "Isoenergetic transfer of Atg12 from one protein to another via the reaction X-Atg12 + Y = Y-Atg12 + X, where both the X-Atg12 and Y-Atg12 linkages are thioester bonds between the C-terminal amino acid of Atg12 and a sulfhydryl side group of a cysteine residue."