Academic advising is not an integral part of the duties of a senior lecturer, as it is in some other systems. Rather, academic advising is performed by certain faculty members who have taken on that task as a specific assignment. These individuals receive a certain amount of equivalent hours for their efforts. It is not expected that a new appointee would have such duties. Normally, such assignments are not excessive, and do not involve explicit computation of equivalent hours.
Teaching is also a duty of an assistant professor.
Typically, an assistant professor will teach one course per year, plus direction of some undergraduate theses.