Upvote:2
If the priest who apostatized and became atheist is obstinate in his heresy, he is to be deposed/defrocked:
Β§1. All apostates from the Christian faith and all heretics and schismatics:
1Β°. Incur excommunication ipso facto, and
2Β°. Unless they repent, shall be deprived of any benefice, dignity, pension or other charge which they may hold in the Church, and be declared infamous; clerics, after repeated warning, shall be deposed;