- lithium:proton antiporter activity
Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: Li+(in) + H+(out) = Li+(out) + H+(in).
- ISG15 transferase activity
Catalysis of the transfer of ISG15 from one protein to another via the reaction X-ISG15 + Y = Y-ISG15 + X, where both X-ISG15 and Y-ISG15 are covalent linkages.
- Pup transferase activity
Catalysis of the transfer of Pup from one protein to another via the reaction X-Pup + Y = Y-Pup + X, where both X-Pup and Y-Pup are covalent linkages.
- URM1 transferase activity
Catalysis of the transfer of URM1 from one protein to another via the reaction X-URM1 + Y = Y-URM1 + X, where both X-URM1 and Y-URM1 are covalent linkages.
- Atg12 transferase activity
Catalysis of the transfer of ATG12 from one protein to another via the reaction X-ATG12 + Y = Y-ATG12 + X, where both X-ATG12 and Y-ATG12 are covalent linkages.
- SUMO transferase activity
Catalysis of the transfer of SUMO from one protein to another via the reaction X-SUMO + Y = Y-SUMO + X, where both X-SUMO and Y-SUMO are covalent linkages.
- ubiquitin-protein transferase activity
Catalysis of the transfer of ubiquitin from one protein to another via the reaction X-Ub + Y = Y-Ub + X, where both X-Ub and Y-Ub are covalent linkages.
- FAT10 transferase activity
Catalysis of the transfer of FAT10 from one protein to another via the reaction X-FAT10 + Y = Y-FAT10 + X, where both X-FAT10 and Y-FAT10 are covalent linkages.