Which of the following is a function of the Prime Minister?

The role of the Prime Minister encompasses various functions, one of which is to represent the UK internationally. This aspect of the job is crucial as it involves engaging with other nations, participating in international discussions, forming diplomatic relationships, and promoting the UK’s interests on the global stage. This can include attending international summits, negotiating treaties, and fostering trade relationships, all of which are vital for the country's diplomacy and foreign policy.

In contrast, the other choices describe functions that fall outside the direct scope of the Prime Minister's responsibilities. Legislation is primarily the responsibility of Parliament, where laws are proposed and approved. Judicial proceedings are handled by the judiciary, which operates independently of the executive branch, ensuring a fair legal process. The oversight of local councils pertains to the administration of local governance, a role managed at a more local level rather than by the Prime Minister.