The principal role of Christ's College is to oversee the preparation and formation of ministerial candidates for the Church of Scotland. The College collaborates closely with the Department of Divinity and Religious Studies to ensure candidates receive appropriate academic training for the ministry, funding a Teaching Fellowship in Practical Theology, organizing extramural lectures (including the Christ’s College Lectures) and seminars, and hosting an annual lecture at the beginning of each academic year followed by refreshments. In addition, the College maintains the Divinity Library, which serves all undergraduates within the department. It also contributes to the spiritual life of the university. The College also works closely with the Aberdeen University Centre for Ministry Studies, which provides a Saturday morning theology academy, summer schools, retreats and various events for pastors and churches.
Working with the Master and administrative staff of the College, the Financial Board administers the various bequests, legacies and funds held by the College, providing financial support to the University in its provision of appropriate courses and library resources. The college currently funds a Teaching Fellowship in Practical Theology.