"acts as supervisor" is a correct and usable phrase in written English.
You can use it when someone is overseeing or leading certain tasks or activities in a certain situation. For example, "Mrs. Smith acts as supervisor of the daycare center."
SAA act as field supervisor and financial director and contributed to analysis and writing of the manuscript.
Your paper seems to not address the other side's view of trying to protect their children through the act of acting as supervisor during this learning curve.
Students must define the scope of the proposed project with the faculty member who has agreed to act as supervisor, and submit a brief abstract to the director of graduate studies for approval.
How could a man who in 1993 carried on a sexual relationship with Lowrita Rickenbacker, a convicted prostitute and drug dealer who'd been arrested multiple times in the very precinct where he acted as supervisor, become, in 2012, the top cop on a force of over 2,500 officers?
One experienced clinical psychologist for each hospital acted as supervisor and guided the examiners.
Professor at Erasmus University Rotterdam, also acted as supervisor of MG in the Post-Doctoral fellowship and EB in the PhD studies.
ACS acted as supervisor, took part in project management, helped in patient examination, diagnosis, tear sample collection and photodocumentation.
In Sweden the central government allocated financial assistance and acted as supervisor of activities in the county councils.
RS acted as supervisor throughout the MSc process and was involved in critically revising the subsequent document in readiness for submission to publication.
TM acted as supervisor to KR and part of the study management group contributing to the development of the Delphi statements, between round analysis and preparation of the manuscript.
