 After ordination, Nezabitauskis briefly served as the administrator of Varniai parish before transferring as administrator to Jurbarkas parish.From 1806 to 1815, he was parson of Varniai, then the seat of the Diocese of Samogitia.At the same time, from 1808, he was director of the Varniai cathedral school and, from 1811, he was religious representative to the district court in Telšiai.