According to the Dao Fa Hui Yuan [zh], it is stated that Jinzha and Nezha are of the same type of Taoist protective deities and are among the subordinates of Wang Ye.
[1][2] Originally, Jinzha was one of the Five Great Wisdom Kings in Tibetan Buddhism, also known as Kuṇḍali or sometimes as the Ganlu Mingwang (甘露明王), who was responsible for longevity, healing, purification, and exorcism.
However, due to potential influences from folk literature, the name "軍吒" (Junzha or Junzhalili) was changed to "金吒" (Jinzha) to align with the character "木吒" (Muzha).
In ancient legends, Jinzha wields various magical weapons, including the Ruyi Dragon Stake, swords, spears, lances, the Ganlu Treasure Vase, and a spiritual snake, among others.
[9] In the Qing dynasty Ché Wáng Fǔ (车王府) opera script Investiture of the Gods (封神榜), Jin Zha is described as having white teeth, red lips, and a handsome face.