AR core problem in movement of the object while animating(Need Urgent Help!)

So I have been working on a project where I am making an zoo tycoon like game in AR.I have imported few assets from unity asset store (A tiger for now).Now I wanted the Tiger to move around when clicked first I coded a very basic translation code for straight line movement only.It was successful than I watched a tutorial on movement + animation but when I add animation to it the tiger does not move when placed in AR world and only first animation plays here is the code I made:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class just : MonoBehaviour
{
Animator anim;
public float timer; //feeding timer value from inspector
private bool isWalking = false;
private float speedTiger = 0.2f;
private float rotSpeed = 75.0f;
// Start is called before the first frame update
void Start()
{
anim = this.gameObject.GetComponent<Animator>();
}
// Update is called once per frame
void Update()
{
if (!isWalking) //if tiger is not walking than playing the walking animition
{
anim.SetBool("walk", true);
isWalking = true;
}
//translation in the forward direction
this.gameObject.transform.Translate(Vector3.forward * speedTiger * Time.deltaTime);

if (timer < 0) //when timer == 0 than stop the motion
{
speedTiger = 0;
anim.SetBool("walk", false); //setting animaiton to idle animaiton
}

timer -= 1/50;

//this.transform.Translate(Vector3.forward * speedTiger * Time.deltaTime);
}
}