What lvl can/should a Cleric start raiding?

[Sweagen]

I recently joined a guild which raids a fair bit and have just been leveling my cleric a ton. He is now my highest toon at lvl 44. I noticed other clerics raid starting from as low as lvl 52, and wondering what would be a good level to start raiding myself? I will ask my guild later tonite, just wondering if y’all had any ideas on general entry level into raiding or when you first got into it!