Activate Encryption In Xiaomi.eu Rom

[Prinz Valium]

Hey guys and girls,

i want to encrypt my Xiaomi Mi5 Pro. But wen i try to do it, it yust boots back to the System.
So my question is, is there a way to encrypt the phone while using a xiaomi.eu ROM.
Nowadays it is for me highly recommended to encrypt my device.

Thanks for any comments.