Atalıq were tutors of a khan's children in the Golden Horde and later other Tatar khanates. In some cases they could rule regions or command units if the khan was a minor.
(Tatar) "Atalıq/Аталык". Tatar Encyclopaedia. Kazan: The Republic of Tatarstan Academy of Sciences. Institution of the Tatar Encyclopaedia. 2002.
References
Atalıq Wikipedia(Text) CC BY-SA