There are different job codes for research and university teaching. A Skilled Worker visa holder in a research role is only permitted to undertake teaching activities (giving lectures, tutorials, examining, or invigilating, for example) if their role involves teaching within the collegiate University.
A Skilled Worker visa holder in a research role can undertake research or teaching as supplementary employment if teaching has been mentioned as part of their duties on their Skilled Worker Certificate of Sponsorship (CoS).
A Skilled Worker visa holder in a research only role who wishes to undertake teaching must ask their employing department/ faculty/ college to submit a Changes & Leavers form to SIT reporting the new teaching duties. SIT must then report the new duties to the Home Office before any teaching commences.
It is not possible to add teaching duties if no teaching will be undertaken within the collegiate University.