No, mc applications of ender tools are disabled, but I still rp the use of enderpearls... Even as a weapon. I slammed one into someone's face in rp, and it teleported their head and left the body. DECAPITATIOOOOOON!
I do not know if they teleport you but it mentions it in the wiki (Lotc wiki,fauna,Enderman). And Lykos when you have 36 swords (72% hit rate with an iron sword + reflected hits) I do not want more than ten :)