Only regerence I uncovered on pre-islamic shamanism in modern-day Turkey:
Shamanism[ Spoiler ]
"Etymology
Shaman pronounced /ˈʃɑË?mÉ™n/, /ˈʃeɪmÉ™n/, (|ˈshämÉ™n; ˈshÄ?-|) noun (pl. -man(s)) originally referred to the traditional healers of Turkic-Mongol areas such as Northern Asia (Siberia) and Mongolia, a "shaman" being the Turkic-Tungus word for such a practitioner and literally meaning "he or she who knows." The words in Turkic languages which refer to shamans are kam, and sometimes baksı. This article is about the various peoples speaking one of the Turkic languages. ... Honorary guard of Mongolia. ... North Asia is a subregion of Asia. ... This article is about Siberia as a whole. ... The Turkic languages constitute a language family of some thirty languages, spoken across a vast area from Eastern Europe and the Mediterranean to Siberia and Western China, and are traditionally considered to be part of the proposed Altaic language family. ... The Evenks or Evenki (obsolete: Tungus or Tunguz, autonym: Ã?ÂÃ?²ÑÂ?Ã?½Ã?ºÃ?¸, Evenki) are a nomadic Tungusic people of Northern Asia. ... The Turkic languages constitute a language family of some thirty languages, spoken across a vast area from Eastern Europe and the Mediterranean to Siberia and Western China, and are traditionally considered to be part of the proposed Altaic language family. ... "
Some of the articles I read through indicated that the Alevi tribes in Turkey still practice a form of Islam with significant shamanic influences.
I can't vouch for the entry's accuracy or neutrality.