- 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.
- 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.
- 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.
- NEDD8 transferase activity
Catalysis of the transfer of NEDD8 from one protein to another via the reaction X-NEDD8 + Y = Y-NEDD8 + X, where both X-NEDD8 and Y-NEDD8 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.