The role of the imam in this context is primarily associated with religious leadership, guidance, and community oversight rather than the specific administrative tasks listed. However, if we consider the broader responsibilities that can be assigned to an imam in historical contexts, one likely match could be "to regulate the common weights and measurements," as this implies a role in ensuring fairness and adherence to community standards, which might fall under the broader governance responsibilities that religious leaders sometimes hold.
If you were looking for something more strictly aligned with historical roles in a specific context, please provide additional details or context!